[drmiller100]

Originally Posted by ConnClark

Fortunately on a diesel the laws of Thermodynamics don't limit us too much. Adding 10 psi of boost with a roots blower can still improve fuel economy.
http://aerade.cranfield.ac.uk/ara/1936/naca-tn-569.pdf

Edit more proof (page 18 in the pdf)
http://naca.central.cranfield.ac.uk/...report-577.pdf

wrong.

is the goal more power, or more "effiicent"????

those are precombustion chamber engines, and run with incredibly inefficient parameters.